Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus oshimensis Yumoto, Hirota, Goto,
Nodasaka and Nakajima 2005.
Gram positive, straight rods, 0.7-0.9 x 1.1-4.4 µm. Produce terminal, ellipsoidal
endospores in unswollen sporangia. Nonmotile.
Colonies are white, circular when grown on PYA medium. Moderately halophilic and
facultatively alkaliphilic. Grow at pH 7-10 (optimum), in 5-20% NaCl media (optimum
7%) and at 13-41 ºC (optimum 30 ºC). NaCl is required for good growth; weak growth
at 0-3% NaCl. Aerobic; no anaerobic growth.
Isolated from soil, Oshyamanbe, Oshima, Hokkaido, Japan.
- Yumoto I., Hirota K., Goto T., Nodasaka Y. and Nakajima K., 2005. Bacillus oshimensis sp. nov., a moderately halophilic, non-
motile alkaliphile. IJSEM 55, 907-911.
Positive results for oxidase, catalase, hydrolysis of casein, hydrolysis of gelatin,
hydrolysis of starch, hydrolysis of Tween 20, 40, 60 & 80, acid production (when
grown at pH 10) from: D-mannitol, D-mannose, glycerol, maltose, melibiose, raffinose, ribose, trehalose, xylitol & D-xylose.
Negative results for deamination of phenylalanine, beta-galactosidase, hydrolysis of esculin, hydrolysis of hippurate, nitrate reduction,
acid production (when grown at pH 10) from: D-arabinose, cellobiose, dulcitol, erythritol, fructose, myo-inositol, lactose, sorbitol &
(c) Costin Stoica